418     ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */  in unz64local_SearchCentralDir()  local
427     if (uMaxBack>uSizeFile)  in unz64local_SearchCentralDir()
428         uMaxBack = uSizeFile;  in unz64local_SearchCentralDir()
435     while (uBackRead<uMaxBack)  in unz64local_SearchCentralDir()
440         if (uBackRead+BUFREADCOMMENT>uMaxBack)  in unz64local_SearchCentralDir()
441             uBackRead = uMaxBack;  in unz64local_SearchCentralDir()
484     ZPOS64_T uMaxBack=0xffff; /* maximum size of global comment */  in unz64local_SearchCentralDir64()  local
495     if (uMaxBack>uSizeFile)  in unz64local_SearchCentralDir64()
496         uMaxBack = uSizeFile;  in unz64local_SearchCentralDir64()
503     while (uBackRead<uMaxBack)  in unz64local_SearchCentralDir64()
508         if (uBackRead+BUFREADCOMMENT>uMaxBack)  in unz64local_SearchCentralDir64()
509             uBackRead = uMaxBack;  in unz64local_SearchCentralDir64()